Methods and Punch Handling Apparatuses for the Production of a Workpiece

ABSTRACT

This disclosure relates to methods and apparatuses for production of a workpiece. A first workpiece part is cut free from a first plate-shaped material by a separating cut made via the punch-handling tool. The first workpiece part is held in at least one of a clamped manner and tensioned manner via at least one of an upper tool and a lower tool of a punch-handling tool while being cut free. The workpiece part is aligned with the first plate-shaped material, a further plate-shaped material that differs from a material of the first workpiece part, and a second workpiece part and the aligned pieces are clinching with a clinch tool to connect the pieces at a connection point that is free from a filler material.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of and claims priority to U.S.application Ser. No. 15/715,821, filed on Sep. 26, 2017, which claimspriority to European Application No. 16190654.0, filed on Sep. 26, 2016.The contents of the priority applications are hereby incorporated byreference in their entirety.

TECHNICAL FIELD

The invention relates to methods for the production of a workpiece, inparticular a strengthened workpiece, and a punch-handling tool forcarrying out the methods.

BACKGROUND

DE 195 24 235 A1 discloses a method for the production of a molded parthaving different material thicknesses is known. DE 195 24 235 A1provides that a base board is initially cut to an intermediary orfinished measurement. Subsequently, a strengthening element is cut andconnected on the base board by means of a joining technique, such asadhesion, welding or soldering, as well as clinching, for example.Subsequently, further punching and forming steps are carried out on thebase board to produce the molded part.

SUMMARY

The present disclosure relates to methods for the production of aparticularly strengthened workpiece with increased process safety and animproved position accuracy of workpieces to be connected. The presentdisclosure also relates to punch-handling tools for carrying out suchmethods.

In one aspect, the present disclosure provides methods in which thefirst workpiece part is cut free from a first plate-shaped material bymeans of a separating cut by a punch-handling tool that has an uppertool having at least one punching stamp and a lower tool having at leastone punching die, and, when cutting free, the first workpiece part isheld in a clamped or tensioned manner by the upper tool or the lowertool, and a clinch tool is allocated to the upper or lower tool thatreceives the first workpiece part, and the plate-shaped material or adifferent plate-shaped material or a second workpiece part, which isproduced from one of the plate-shaped materials, is positioned to liebetween the upper and lower tool, and the first workpiece part and theplate-shaped material or the second workpiece part are aligned relativeto each other, and in which the clinch tool and the upper or lower toolthat receives the first workpiece part are guided together and at leastone connection point that is free from filler material is introducedinto the plate-shaped material and the first workpiece part or into thefirst and second workpiece part.

As a result of such a sequence of work steps, it is possible that, aftercutting the first workpiece part free from the plate-shaped material, aposition-accurate reception of the first workpiece part takes place bymeans of the upper tool or lower tool, and this position-accuratereception can be maintained during positioning relative to the clinchtool, in particular a clinching die. Furthermore, a shortening of theprocessing time is also obtained by maintaining the tension of the firstworkpiece part on the punch-handling tool. In addition, the processsafety can also be increased as a result of the reception of theworkpiece part when cutting free by the upper tool or lower tool and thesubsequent direct transfer for connecting to the tool without usingfiller materials, since no handling steps are required therebetween forthe first workpiece part.

In certain implementations of this method, the first workpiece part hasa flat extension that is smaller than an external periphery or a basesurface of a punching stamp of the upper tool or a punching die of thelower tool.

In another aspect, the present disclosure provides methods in which thefirst workpiece part is cut free from a first plate-shaped material by aseparating cut by means of a punch-handling tool, which has an uppertool having at least one punching stamp and at least one clinch tool andlower tool, and, when cutting the first workpiece part free, it is heldon the upper tool in a clamped or tensioned manner by means of the atleast one punching stamp, and in which the first workpiece part isaligned and positioned relative to the plate-shaped material or relativeto a different material or a second workpiece part, that is producedfrom one of the plate-shaped materials, and in which the punching stampis inactivated on the upper tool after positioning the first workpiecepart relative to the plate-shaped material and a clinch tool provided onthe upper tool is activated and the clinch tool on the upper toolinteracts with a clinch die and at least one connection point that isfree from filler material is introduced in the first and secondworkpiece part.

In these embodiments, it is alternatively provided that thepunch-handling tool includes an upper tool on which both at least onepunching stamp and a clinch tool is present such that the firstworkpiece part is held on the punching stamp in a clamped or tensionedmanner and is transported to the second workpiece tool. As a result ofthis control or activation and inactivation of the punching stamp andthe clinch tool, cutting free, transporting and connecting can becarried out successively by means of an upper tool. With an inactivationof the punching stamp or the clinch tool, the inactive punching stamp orthe inactive clinch tool can be retracted in a tool base body of theupper tool. With an activation, the punching stamp or the clinch tool isheld in a stationary position relative to the tool base body. The lowertool includes at least a punching die and at least one clinch die. Thesemethods are provided in particular with larger components in which thesurface dimensions are larger than the external periphery or the surfacearea of a punching stamp of the upper tool.

In certain implementations, the at least one first workpiece part andthe plate-shaped material or the first and the second workpiece part areconnected by means of a join that is free from filler material, inparticular by clinching. With such a join, in particular clinching, theadditional part that is formed as a sheet part and the plate-shapedmaterial are connected to each other without using a filler material bymeans of a forming method, wherein, in such a forming method, formingregions are created with undercuts to allow a permanent and stableconnection.

In particular implementations, the at least one first workpiece part andthe second workpiece part are produced from the same or differentplate-shaped material. Thus, for example when clamping a plate-shapedmaterial in a punching machine, initially, the workpiece part isproduced in the contour and is then removed from the plate-shapedmaterial by the separating cut to then apply this to the secondworkpiece part that is still to be processed or at least partiallyprocessed and is made of the same plate-shaped material. In a subsequentprocessing step, the second workpiece part can then also already befinally processed in terms of the contour and cut free for forming thestrengthened workpiece. Alternatively, the second workpiece part canalso already be processed in the contour such that only one rodconnector still holds the second workpiece part relative to theplate-shaped material that is detached after the production of theconnection points relative to at least one first workpiece part.

In some implementations, the first workpiece part is held in a receiveron the punching stamp and the punching die in a clamped or tensionedmanner. This receiver is formed as an indent, in accordance withparticular implementations. The edges of the indent can be formed to besloped such that the receiver opening has a larger surface than thereceiver base. As a result, a frictional positioning of the firstworkpiece part in the receiver can take place.

In certain implementations, the second workpiece part is produced bymeans of punching and/or bending and/or laser processing and consists ofa different material from the first workpiece part and is supplied withthe first workpiece part before connecting. Thus, strengthenedworkpieces can also be produced in which the material and/or the wallthickness of the at least one first workpiece part or the processedworkpiece deviate from each other.

In particular implementations, at least one connection point isintroduced as a pre-fixing between the at least one first workpiece partand the plate-shaped material and, at the end of the processing of thestrengthened workpiece, the at least one connection point introduced asa pre-fixing is punched out or detached. As a result, a further increaseof position accuracy can be achieved since at least one connection pointis immediately introduced when supplying and positioning the firstworkpiece part to the workpiece to allow the pre-fixing, independentlyof whether this connection point is needed at that point.

In particular implementations, two or more first and/or second workpieceparts are positioned to be lying one on top of the other and areconnected to one another by means of at least one connection point thatis free from filler material to form a sandwich component. As a result,multi-layer plates having stiffening ribs lying therebetween can beproduced.

In another aspect, the present disclosure provides punch-handling toolsfor producing workpieces, in particular a workpiece strengthened by afirst workpiece part, said workpiece having an upper tool having atleast one punching stamp and a lower tool having at least one punchingdie, wherein the punching stamp or the stamping die holds the firstworkpiece part in a clamped or tensioned manner by means of the punchingstamp or the punching die after the final separating cut to cut a firstworkpiece part free from a plate-shaped material. The punching die orthe punching stamp is thus provided to be free from a scraper. Inparticular, a contour of the punching stamp or the punching die ischosen such that the clamping or tensioning between the first workpiecepart and the punching stamp or the punching die is established aftercutting the first component free such that, subsequently, a safertransportation of the first workpiece part by means of the punchingstamp or the punching die is possible.

In particular implementations, the punching stamp or the punching dieholds the first workpiece part by at least partially surrounding anexternal contour of the first workpiece part or by engaging in aninternal contour of the first workpiece part. For example, with smallworkpiece parts that are smaller than the base surface of the punchingstamp or the punching die or a tool base body of the upper tool or lowertool, the punching stamp or the punching die can have a receiver or anindent, the external contour of which is slightly smaller than theexternal contour of the first workpiece part or the side walls of whichare inclined towards the indent such that the first workpiece part isreceived in the indent in a tensioned manner. With components of a flatdimension that extend beyond the punching stamp or the punching die orhave external contours that are difficult to grip or cannot receive sucha clamping receiver via the external contour of the workpiece, at leastone punching stamp is provided that abuts on an internal contour, suchas a round or polygonal recess, for example, to receive the firstworkpiece part by clamping or wedging. To do so, it can be provided thatthe punching stamp(s) has a slope on a peripheral wall, starting fromthe stamping surface to the tool body, said peripheral wall can taperwith respect to the stamping surface or being inclined inwards. As aresult, the workpiece can be held in a clamped manner after punching. Inparticular, the workpiece can be slightly inclined or tilted when beingraised from the plate-shaped material or remaining grid, wherebyclamping or wedging is supported. In particular implementations, anadjacent tool, in particular a clinch tool, is formed on the tool basebody to be shorter in length than the punching stamp(s).

Furthermore, it is provided according to particular embodiments that theupper tool has a punching stamp having a receiver for the firstworkpiece part, and the punching die of the lower tool comprises apressure surface to transfer the first workpiece part into the receiverin the punching stamp, and a clinch tool, e.g. a clinching die, whichconnects the first workpiece part and the second workpiece part to thepunching stamp. Thus, a so-called cut-out tool, for example, having twodies is provided, said dies forming the punch-handling tool. The presentdescription also applies in an opposite manner in that the receiver isprovided in the punching die and has the pressure surface in thepunching stamp and interacts with the tensioning die by means of aclinch tool. This embodiment of the punch-handling tool is provided inparticular for small components in which a receiver or an indent can beintroduced in the tool base body.

In particular implementations, the upper tool has at least one punchingstamp and at least one clinch tool in a tool base body that are moveablyreceived in a guide body relative the tool base body and the at leastone punching stamp is activated for introducing the separating cut suchthat the punching stamp is held in such a way that it cannot be movedrelative to the tool base body during a power stroke, and the clinchtool is inactivated such that the clinch tool can be retracted into thetool base body during a power stroke, and the punching stamp isinactivated for connecting the first workpiece part to the secondworkpiece part in a manner free from filler material and the clinch toolis activated with respect to the tool base body. Such an upper tool isalso called a so-called multi-tool, which can have several tools thatcan be selectively controlled to be used. In particular implementations,two punching stamps adjacent to each other are formed as punching stampsfor introducing the separating cut. Such embodiments have the advantagethat large-surface or heavy first workpiece parts, in particular, can bewedged in or tensioned such that there is a secured, frictionalreception.

The disclosure and further advantageous embodiments and developmentsthereof are described and explained in more detail below by means of theexamples depicted in the drawings. The features that can be seen in thedescription and the drawings can be applied individually or together inany combination according to the invention.

DESCRIPTION OF DRAWINGS

FIG. 1 illustrates a perspective view of a tool machine.

FIG. 2 depicts a schematic sectional view of a first embodiment of apunch-handling tool in a first work step.

FIG. 3 depicts a schematic sectional view of the punch-handling toolaccording to FIG. 2 in a second work step.

FIG. 4 depicts a schematic sectional view of the punch-handling toolaccording to FIGS. 2 and 3 in a third work step.

FIG. 5 illustrates a perspective view of a strengthened workpiece.

FIG. 6 illustrates a perspective view of an alternative embodiment of anupper tool of the punch-handling tool.

FIG. 7 depicts a schematic full section of the upper tool according toFIG. 6.

FIG. 8 depicts a schematic view from above of a plate-shaped materialafter the production of a first workpiece part.

FIG. 9 depicts a schematic view from above of a strengthened workpiecebefore separation from a plate-shaped material.

DETAILED DESCRIPTION

In FIG. 1, a workpiece processing machine 11 for processing plate-shapedmaterials 12, 13, such as sheets, for example, is depicted inperspective. The processing of such plate-shaped materials, 12, 13 canhere comprise punching, bending, signing embossing, engraving,deburring, roll forming, in particular roll pinching, and filmseparating of a film on the surface of the plate-shaped material.Furthermore, such a workpiece processing machine 11 can additionallyallow cutting processing by means of a laser. The workpiece processingmachine 11 has a C-shaped base frame 14 having an upper frame leg 15 anda lower frame leg 16. In a throat cavity between the upper frame leg 15and the lower frame leg 16, a conventional coordinate guide 17 ishoused. The coordinate guide 17 serves to position or move theplate-shaped workpieces 12, 13 relative to a processing station 18 ofthe workpiece processing machine 11 and to store and to change andreplace tools 20 in the processing station 18.

A tool 20 is changed in the processing station 18. The tool 20 comprisesan upper tool 21 and a lower tool 22. The lower tool 22 is arranged onthe machine table 25 in a lower tool receiver 23. The machine table 25rests on the lower base frame 16 of the machine frame 14 on one side.The upper tool 21 is supported on an upper tool receiver 24 of a tappet26. This can be moved back and forth hydraulically, for example, on theupper frame leg 15 of the frame 14 in the direction of a double arrow27. Both the upper tool 21 and the lower tool 22 can be adjusted orobstructed around a stroke axis 78 of the tappet 26 in the direction ofa double arrow 29. Corresponding blocking movements are also controlledby means of a schematically depicted control device 30 of the workpieceprocessing machine 11, much like the other essential machine functions.

In a working region 31 of the processing station 18, which is formed byat least one workpiece surface 28 of the machine table 25, at least onefirst plate-shaped material 12 is held by a gripping device 32 duringthe processing by means of the tool 20 and is relatively guided in theprocessing station 18 in a moveable manner. Furthermore, at least onefurther or second plate-shaped material 13 can be held in the workregion 31 by means of a further gripping device, wherein this grippingdevice advantageously corresponds to the gripping device 32. In certainimplementations, these two gripping devices 32, 32′ are controllableindependently of each other for moving the first plate-shaped material12 and second plate-shaped material 13 on the workpiece surface 28.Alternatively, yet further plate-shaped materials can be arranged andreceived in the work region 31 by means of further gripping devices.

The first plate-shaped material 12 deviates advantageously from thesecond plate-shaped material 13. This can be in terms of the materialthickness, in terms of the material choice and/or in terms of thesurface of the plate-shaped material. After producing a strengthenedworkpiece 34 from the first and at least one further, in particularsecond plate-shaped material, the embodiments thereof being described inmore detail below, this strengthened workpiece 34 is guided out of theprocessing station 18, for example, by means of lowering a table segment19 of the machine table 25.

In FIGS. 2 to 4, schematic sectional views are depicted by means ofwhich a strengthened workpiece 34 is produced with a tool 20. This tool20 is formed as a punch-handling tool that has a cut-out tool as theupper tool 21 and a punching die 36 as the lower tool 22 and a clinchdie 38.

The upper tool 21 includes a tool base body 41 on which a chucking pin42 is provided by means of which the upper tool 21 can be chucked in theupper tool receiver 24. A punching stamp 35 is provided on the tool basebody 41, which punching stamp 35 comprises a receiver 44 or indent 44.This receiver 44 is provided on the end side relative to the punchingdie 36 on the punching stamp 35. Further indents 47 are introduced in acontact surface 46 of the receiver 44, said indents 47 being formed asso-called clinch inserts.

The receiver 44 is adjusted, for example, to the external contour of afirst workpiece part 49 to be produced. In exemplary embodiments, thefirst workpiece part 49 is formed as a pane. The receiver 44 thus has apane or pot-shaped recess.

Opposite the punching stamp 35, the lower tool 22 having the punchingdie 36 is formed. This comprises a cutting edge 51 that is adjusted tothe receiver 44 in terms of its contour. Furthermore, a pressure surface39 is formed within the cutting edge 51, by means of which pressuresurface 39 the first workpiece part 49 is transferred into the receiver44.

In this punch-handling tool 20, the first workpiece part 29 is punchedout of the plate-shaped material 12 after carrying out a stroke and istransferred into the receiver 44 at the same time and clamped therein orreceived to be held in a tensioned manner. Thus, a temporary fixing ofthe first workpiece part 49 on the punching stamp 35 is provided.

In the exemplary embodiment depicted in FIG. 2, the first workpiece part49 is stamped out of the full-surface plate-shaped material 12.Alternatively, the first workpiece part 49 can be already cut out bymeans of a separate processing procedure in the shape and contour and isheld only by means of the connection rods to the plate-shaped material12. Thus, in the method step according to FIG. 2, it is only necessaryto separate the connection rod, wherein, at the same time, the firstworkpiece part 49 is also chucked in the receiver 44 of the punchingstamp 35 by the punching die 36.

The receiver 44 can also be provided on the punching die 36 such thatthe situation is reversed.

In FIG. 3, the first workpiece part 49 is moved into a predeterminedposition by means of the upper tool 21 and is aligned relative to theplate-shaped material 12. Here, a change between the punching die 36 andthe clinch die 38 for the following connection process takes place.Subsequently, the first workpiece part 49 is connected to the punchingstamp 35 of the upper tool 21 and the plate-shaped material 12 isconnected to the multi-tool/clinch die 38 arranged to be opposite theupper tool 21. This multi-tool/clinch die 38 has two clinch stamps 53,for example, which can at least partially engage in the clinch insertsor indents 47.

After aligning the upper tool 21 and clinch die 38 relative to eachother and also relative to the plate-shaped material 12, the firstworkpiece part 49 is connected to the plate-shaped material 12 by meansof connection points 55 that are free from filler material. Theseconnection points 55 emerge as a result of joining, in particularclinching. These clinching points are depicted in sections in FIG. 4.The first workpiece part 49 is fixed on the plate-shaped material 12.Then, the plate-shaped material 12 can be processed and/or completed interms of the external contour by means of further processing steps inthe tool machine 11 to form the strengthened workpiece 34.

In the production steps depicted in FIGS. 2 to 4 for producing thestrengthened workpiece 34, the strengthened workpiece 34 consists of thesame material. Initially, the first workpiece part 49 is stamped out ofthe plate-shaped material 12 and then this first workpiece part 49 is,in turn, positioned relative to the plate-shaped material 12 topermanently connect this first workpiece part 49 to the plate-shapedmaterial 12. Then, the second workpiece part 33 is formed from theplate-shape material 12, in particular the external contour. Afterstamping out the second workpiece part 33, the strengthened workpiece 34is produced. Further downstream processing steps can still be carriedout on the processed workpiece 34 according to FIG. 5.

Alternatively to these method steps depicted in FIGS. 2 to 4, it can beprovided that, after stamping out the first workpiece part 49 from theplate-shaped material 12, a further plate-shaped material 13 ispositioned between the upper tool 21 and lower tool 22 such that whensubsequently connecting the first workpiece part 49 to the plate-shapedmaterial 13 or the second workpiece part 33 to be formed from this, twodifferent materials and/or wall thicknesses are connected to each otherto form the strengthened workpiece 34.

By chucking the first workpiece part 49 in the punching stamp 35, asimplified handling is made possible.

This method enables the production of the strengthened workpiece 34according to FIG. 5. In addition, high process security and a shorteningof the process time is enabled, since the additional component 49 can bemoved and positioned by means of a chucking on the tool 49 forintroducing the connection points 55 for producing the strengthenedworkpiece 34.

In FIG. 6, an alternative embodiment of an upper tool 21 of the tool 20is shown as a punch-handling tool.

In FIG. 7, a full section of the upper tool 21 according to FIG. 6 isdepicted. In addition, an exemplary lower tool 22 is also depicted infull section. The upper tool 21 comprises a punching stamp 35 that isformed, for example, by means of two individual stamps 58, and a clinchtool 37, which is formed as a cylindrical clinch tool 53, for example.The punching stamp 35 and the clinch tool 37 are received in the toolbase body 41. This tool base body 41 comprises a control disk 57 havingan external gearing 61, whereby the control disk 57 is rotatable in itsposition relative to the tool base body 41. Above the control disk 57,the clamping pin 42 is provided. The punching stamp 35 and the clinchtool 37 are received in the workpiece base body 41 to be longitudinallymoveable. To do so, the punching stamp 35 and the clinch tool 37 bothhave a guiding body 62, the control disk 57 abutting on the internal endthereof. For example, the punching stamp 35 is thus activated and cannotbe retracted into the free space 63 during a power stroke, whereas theclinch tool 37 is inactivated and can retract in the tool base body 41because of the remaining free space 63.

The lower tool 22 depicted in sections has a counter cut 54 that bordersan indent. An ejector 59 is moveably received in the indent 56 by meansof a spring element 60 in the indent 56. Furthermore, in each case,punching stamp receivers are provided in the lower tool 22, saidpunching stamp receivers lying in front of and behind a sectional planeand therefore not being depicted. This lower tool 22 can also berotatably controlled via an external gearing 61 so that the lower tool22 and the upper tool 21 are aligned appropriately relative to eachother. A multi-tool upper tool and lower tool is thus provided.

When handling a first workpiece part 49, which extends flatly in such away that this can no longer be received by the punching stamp 35 in areceiver 44, such an upper tool 21 according to FIGS. 5 and 6 is used.From this, the following process emerges:

In the embodiment of the upper tool 21, it is provided, for example,that a clinch stamp 53 and a punching stamp 35 formed from twoindividual stamps 58 are provided. The clinch stamp 53 and theindividual stamps 58 lie on a common partial circle.

A top view of the plate-shaped material 12 is depicted, for example, inFIG. 8, said material 12 being held by the gripping device 32. By meansof a punching or laser process, the first workpiece part 49 isintroduced in the plate-shaped material 12, wherein the first workpiecepart 49 is fixedly connected to the plate-shaped material 12 by means ofconnection rods 65. To cut the first workpiece 49 free, the punchingstamp 35 is activated. Then, the two individual stamps 58 of thepunching stamp 35 are moved towards the first workpiece part 49, whereinthe multi-tool/punching die 36 is already positioned below the firstworkpiece part 49. The individual stamps 58 cut the circular contour 66and, at the same time, separate the first workpiece part 49 from theconnection rods 65. The clinch tool 37 is inactive such that this canretract into the tool base body 41.

After cutting the first workpiece part 49 free from the connection rods65 or after introducing the separating cut, the first workpiece part 49remains on the punching stamp 35 because of clamping or wedging the twocircular contours 66 with the individual stamps 58, such that this cansubsequently be raised from the processing plane and positioned relativeto the second workpiece part 33. The second workpiece part 33 can beintroduced in the same plate-shaped material 12, according to thisexemplary embodiment, out of which material 12 the first workpiece part49 is produced. The second workpiece part 33 can comprise, for example,at least one indent 71 and/or, secondly, an aperture 72. This is only byway of example.

Before or during placing the first workpiece part 49 on the secondworkpiece part 33, the control disk 57 is activated such that thepunching stamp 35 with the two individual stamps 58 is inactivated andthe clinch tool 37 is activated. Subsequently, at least one connectionpoint 55 can be directly introduced to obtain a prefixing of the firstworkpiece part 49 to the second workpiece part 33. This can take placeon the tool base body 41 of the upper tool 21 to the left or rightdepending on the alignment of the clinch tool 37 relative to thepunching tool 35, wherein, in FIG. 9, the two possibilities aredepicted. After positioning the first workpiece part 49 on the secondworkpiece part 33, these are connected to each other by means of theclinch tool 37. Until this method step, the workpiece 49 remains held ina clamped or tensioned manner by the upper tool 21. In a subsequentprocessing step that is not depicted in more detail, an external contour68 of the second workpiece part 33 can then be cut out and thestrengthened workpiece 34 led away from the machine table 25.

Alternatively and not depicted in more detail, two or more firstworkpiece parts 49 can be arranged lying one on top of the other havingthe same contour or one that deviates from the other on the plate-shapedmaterial 12 for forming the strengthened workpiece 34 and can beconnected to one another. Here, both the plate-shaped material 12 andthe at least one first workpiece part 49 can have a profiling,contouring, ribbed structure or similar and, nevertheless, can befixedly connected to one another on individual connection points.

OTHER EMBODIMENTS

A number of embodiments of the invention have been described.Nevertheless, it will be understood that various modifications may bemade without departing from the spirit and scope of the invention.Accordingly, other embodiments are within the scope of the followingclaims.

What is claimed is:
 1. A method for producing a workpiece, the methodcomprising: cutting at least one first workpiece part free from a firstplate-shaped material by a separating cut, where the separating cut isperformed by a punch-handling tool that has an upper tool having atleast one activatable punching stamp and at least one activatable clinchtool and at least one lower tool; holding the at least one firstworkpiece part in at least one of a clamped manner and a tensionedmanner during cutting, wherein the at least one first workpiece part isheld on the at least one punching stamp by means of the at least onepunching stamp of the upper tool; positioning the at least one firstworkpiece part relative to the plate-shaped material or relative to afurther plate-shaped material distinct from a material of the firstworkpiece part or relative to a second workpiece part that is producedfrom one of the plate-shaped materials; inactivating the punching stampof the upper tool; activating the clinch tool provided on the uppertool; and guiding the clinch tool together on the upper tool with amulti-tool/clinch die so as to generate at least one connection pointthat is free from filler material in the plate-shape material or in thefurther plate-shaped material distinct from the material of the firstworkpiece part or in the second workpiece part and the first workpiecepart.
 2. A punch-handling tool for the production of a workpiece from aplate-shaped material, the punch handling tool comprising: an upper toolhaving at least one punching stamp; and a lower tool having at least onepunching die; wherein at least one of the at least one punching stampand the punching die is configured to hold the first workpiece part inat least one of a clamped manner and a tensioned manner after the lastseparating cut for cutting the first workpiece part free from theplate-shaped material.
 3. The punch-handling tool of claim 2, whereinthe at least one of the at least one punching stamp and the punching dieis configured to at least one of at least partially surround an externalcontour of the first workpiece part and engage an internal contour ofthe first workpiece part to hold the first workpiece part in the atleast one of the clamped manner and the tensioned manner.
 4. Thepunch-handling tool of claim 2, wherein the upper tool has a punchingstamp having a receiver for the first workpiece part and the lower toolhas both a punching die having a pressure surface for transferring thefirst workpiece part into the receiver of the punching stamp and has aclinch tool that connects the first workpiece part and the secondworkpiece part to the punching stamp to form a strengthened workpiece.5. The punch-handling tool of claim 2, wherein the upper tool has atleast one punching stamp and at least one clinch tool in a tool basebody that is moveably received by a guiding body relative to the toolbase body and a punching stamp configured to be activated forintroducing the separating cut of the at least one punching stamp suchthat the punching stamp is help in a non-moveable manner relative to thetool base body during a power stroke, and the clinch tool is inactivatedsuch that the clinch tool is retractable into the tool base body duringa power stroke, and the punching stamp is inactivated for connecting thefirst workpiece part to the second workpiece part without fillermaterial and the clinch tool is activated relative to the tool basebody.
 6. The punch-handling tool of claim 2, wherein the punching stamphas a peripheral wall abutting on a punching surface, which peripheralwall tapers relative to the punching surface.
 7. The punch-handling toolof claim 2, wherein the clinch tool is formed to be shorter in lengththan the at least one punching stamp.